Final answer:
Chiaroscuro is an artistic technique used by Leonardo da Vinci to create contrasts of light and shadow in his paintings.
Explanation:
Chiaroscuro is an artistic technique used by Leonardo da Vinci to enhance the emotion of a painting by creating contrasts of light and shadow to give the illusion of volume and depth in the artwork. This technique is exemplified in da Vinci's Mona Lisa through the masterful use of light and shadow on the face and hands of the subject.
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